Improvement in burglar-alarm and table-bell



A. ISKE.

Burglar Alarm.

Patented Dec. 8, 1868 iti! taba ANTI-IONY ISKE, OF LANCASTER, PENNSYLVANIA ASSIGNOR TO HI-MSELF AND BENJAMIN MISHLER, OF SAME PLACE.

Letter-s Patent No. 84,696, dated December 8, 1868.

IMPROVEWNT'IN `BURGLAR-ALARM AND TABLE-BELL.

-The Scheule refen'ed to in these Letters Patent and making part of the same.

To all whom fit 'may concm'n:

Be it knownl that I, ANTHONY IsKn, of Lancaster, in the count-y of Lancaster, and State of Pennsylvania, have invented certain Improvements ina Combined. Call-Bell and Burglar-Alarm; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in Which- Figure 1 is a perspective fiew, with the bell removed.

Figure 2, a vertical section of the combined device, to show the elevation of the parts.

Figure 3, a plan view of the gear-ing. I

Figure 4 illustiates the mechanism of the action of the hammer for the call-bell.

Figure 5, the check and lever-age for starting the alarm-hanlmer, both hammers acting on the' same bell independently of each other.

Tlie nature of. my invention consists in combining an ordinary call-bell with a burglar-alarm, that can be easily packed in a travelling-bag or carried in the pocket, and that, by being set on a table near the bed, can be connected by a pin and -thread with any door or window, or any number of them, so that, -if either be opened, the alarm is sure to sound. The least pull, or even contact with the thread, will move the lever and spring the alarm. i

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

The base, V, consists of a piece of wood, say three inches in diameter, seven-eighths of an inch thick. With a brace-bit, an inch and a half hole is bored out frofn the top, about half way. A one and a quarter inch hole is then bored on the same centre from the bottom, near one side of the block, as shown in fig. 2. This leaves a shoulder for a circulzul` plate, Z, to'forin a bottom or bearing, and forms two chambers, the npper, for a strong coiled spring, T, the lower, for the winding- Wings or key U, from which a shaft or spindle, S, arises vertically, and around the square base of which the coiled spring is Wound on turning the key.

The shaft has its npper bearing in the bracket A, and carries a ratchet-wheel, I, and a large cog-wheel, Y, to the upper surface of which there is a pawl or click, J, having a spring, 42,'to bear upon it, to prevent running back while winding, as is common for such purposes.

The cog-\vheel Y mcshes-into a pinion, P, on a vertical shaft, lt, which has its npper bearing in the bracket A, and the lower bearing in the bed or foundation-plate E, which covers ,(or nearly) the npper surface of the block V.

This saine shaftR- has also aratchet-toothed wheel, K, into which a double pawl, L, works, afiixed to a rocker-shatt, Q, which has its bearings in vprojecting arms extending from the end of and beneath the bracket A. To this rocker-shaft the alarm-rodm and hammer W are connected.

At the base of the shaft R, below the pinion P, there is a four-toothed cam, N, fig. 5, which engages with a hook on the lever n, moving on a pivot, the outer end of which lever is connected to a slotted arm, O, ter- .minated with an eye, 1), for the attachment of threads,

cord, or cords.

The operation is such, that when the lever-book is disengaged, the wound-up spring operates the cogged wheel and pinion, so as to revolve the ratchet-wheel,

on opposite sides for a cross-arm, H,'to slide up and v down in, upon a spiral spring, b, Wound around said column n, outside and beneath said cross-arm H. A piston, O, having a milled head, D, moves through a collar in the bell, and enters the slotted tube of the column n, in which it is connected to the cross-arm H.

This cross-arm is connected, by an adjusting-aim, G, with a short lever, g, (held by yielding connections.) The short lever g is attached to a rocker-shaft, X, `fig. 4, to Which the rod I I, With its hammer, is connected. The operation being so that When the milled button D is pressed upon, the piston O, with its cross-arm H projecting through 'the slots in the column, causes the spiral spring to yield, and the connecting-arm G acts upon the short lever g, giving the rocker-shaft X, with its hammer-arm I I, a rotating motion, causing the hamm er to strike the bell. The spiral spring, reacting, throwsV the piston and button up, so that a rapid succession of pressures Will sound the call.

To admit of hanging the alarm, a ring, t p, i igs. l and 2, moves on a pivot, and can be hung upon a nail. At three points they form an equilateral triangle and answer for pet when turned under or out.

I am aware that numerous devices' and eombinations are eniployed for like purposes, each diiferently arranged. I am not aware, however, of any combination and arrangement that embrace substantially those parts I deem novel and of my invention. I do not, however, claim any of its parts separately considered.

\Vhat I claim as my invention, and desire lto secure by Letters Patent, is-

The combination'and arrangement of the base, V, with its chambers for the affixed key U, and the` spiral spring T, gea'ring, and bell-attachment, all lconstructed and operating-substantially in the manner and for the purpose specified. v

AN THQN Y ISKEv Witnesses: v V

J OBN M. AMWEG, J AcoB STAUFFER. 

